The effect of playing formation on high-intensity running and technical profiles in English FA Premier League soccer matches

Abstract

The aim of this study was to examine the effect of playing formation on high-intensity running and technical performance during elite soccer matches. Twenty English FA Premier League games were analysed using a multiple-camera computerized tracking system (n = 153 players). Overall ball possession did not differ (P > 0.05) between 4–4–2, 4–3–3 and 4–5–1 formations (50%, s = 7 vs. 49%, s = 8 vs. 44%, s = 6). No differences were observed in high-intensity running between 4–4–2, 4–3–3 and 4–5–1 formations. Compared with 4–4–2 and 4–3–3 formations, players in a 4–5–1 formation performed less very high-intensity running when their team was in possession (312 m, s = 196 vs. 433 m, s = 261 vs. 410 m, s = 270; P < 0.05) but more when their team was not in possession (547 m, s = 217 vs. 461 m, s = 156 vs. 459 m, s = 169; P < 0.05). Attackers in a 4–3–3 performed ～30% more (P < 0.05) high-intensity running than attackers in 4–4–2 and 4–5–1 formations. However, the fraction of successful passes was highest in a 4–4–2 (P < 0.05) compared with 4–3–3 and 4–5–1 formations. The results suggest that playing formation does not influence the overall activity profiles of players, except for attackers, but impacts on very high-intensity running activity with and without ball possession and some technical elements of performance.     

Sex differences in the emotional behavior of three strains of laboratory rat

Sex differences in the emotional behavior of three strains of rats were investigated, using a variety of measures taken during the initial 2 min of open-field exposure and after a loud bell had sounded. Animals were tested either in a clean open field or in one containing the odor of a same-sex conspecific. No general overall sex differences for a variety of measures associated with emotional reactivity were found, so the results did not support the theory that male rats are more “emotional” than females. Sex differences for particular measures associated with emotional responsiveness were found, but these varied with the strain, measure, and odor condition: The latter was found to be particularly important.     

PRISMA-S: an extension to the PRISMA statement for reporting literature searches in systematic reviews

Background:Literature searches underlie the foundations of systematic reviews and related review types. Yet, the literature searching component of systematic reviews and related review types is often poorly reported. Guidance for literature search reporting has been diverse and, in many cases, does not offer enough detail to authors who need more specific information about reporting search methods and information sources in a clear, reproducible way. This document presents the PRISMA-S (Preferred Reporting Items for Systematic reviews and Meta-Analyses literature search extension) checklist, and explanation and elaboration.Methods:The checklist was developed using a three-stage Delphi survey process, followed by a consensus conference and public review process.Results:The final checklist includes sixteen reporting items, each of which is detailed with exemplar reporting and rationale.Conclusions:The intent of PRISMA-S is to complement the PRISMA Statement and its extensions by providing a checklist that could be used by interdisciplinary authors, editors, and peer reviewers to verify that each component of a search is completely reported and, therefore, reproducible.     

Spheres of influence: what shapes young people’s aspirations at age 12/13 and what are the implications for education policy?

Young people’s aspirations remain an enduring focus of education policy interest and concern. Drawing on data from an ongoing five-year study of young people’s science and career aspirations (age 10–14), this paper asks what do young people aspire to at age 12/13, and what influences these aspirations? It outlines the main aspirations and sources of these aspirations as expressed by young people in England in the last year of primary school (survey of 9000+ Y6 pupils, aged 10/11, interviews with 92 children and 76 parents) and the second year of secondary school (survey of 5600+ Y8 pupils, aged 12/13, interviews with 85 pupils). We demonstrate how aspirations are shaped by structural forces (e.g. social class, gender and ethnicity) and how different spheres of influence (home/family, school, hobbies/leisure activities and TV) appear to shape different types of aspirations. The paper concludes by considering the implications for educational policy and careers education.     

The symbolic violence of setting: A Bourdieusian analysis of mixed methods data on secondary students’ views about setting

‘Setting’ is a widespread practice in the UK, despite little evidence of its efficacy and substantial evidence of its detrimental impact on those allocated to the lowest sets. Taking a Bourdieusian approach, we propose that setting can be understood as a practice through which the social and cultural reproduction of dominant power relations is enacted within schools. Drawing on survey data from 12,178 Year 7 (age 11/12) students and discussion groups and individual interviews with 33 students, conducted as part of a wider project on secondary school grouping practices, we examine the views of students who experience setting, exploring the extent to which the legitimacy of the practice is accepted or challenged, focusing on students’ negative views about setting. Analyses show that privileged students (White, middle class) were most likely to be in top sets whereas working‐class and Black students were more likely to be in bottom sets. Students in the lowest sets (and boys, Black students and those in receipt of free school meals) were the most likely to express negative views of setting and to question the legitimacy and ‘fairness’ of setting as a practice, whereas top‐set students defended the legitimacy of setting and set allocations as ‘natural’ and ‘deserved’. This paper argues that setting is incompatible with social justice approaches to education and calls for the foregrounding of the views of those who are disadvantaged by the practice as a tool for challenging the doxa of setting.     

Evening electronic device use: The effects on alertness,sleep and next-day physical performance in athletes

The aim of the present study was to investigate the influence of different types of tasks performed with or without an electronic device (tablet) on pre-sleep alertness, subsequent sleep quality and next-day athletic performance. Eight highly trained netball players attended a sleep laboratory for pre-sleep testing, polysomnographic sleep monitoring and next-day physical performance testing on 5 separate occasions (1 familiarisation and 4 experimental sessions). For 2 h prior to bedtime, athletes completed cognitively stimulating tasks (puzzles) or passive tasks (reading) with or without a tablet. Sleepiness tended to be greater after reading compared to completing puzzles without a tablet (d = 0.80), but not with a tablet. Melatonin concentration increased more so after reading compared to completing puzzles on a tablet (P = 0.02). There were no significant differences in sleep quality or quantity or next-day athletic performance between any of the conditions. These data suggest that using a tablet for 2 h prior to sleep does not negatively affect subsequent sleep or next-day performance in athletes.